Title:
ELECTROMAGNETIC BRAKE CONTROL DEVICE, ELECTROMAGNETIC BRAKE CONTROL METHOD, ELECTROMAGNETIC BRAKE CONTROL PROGRAM, ELECTROMAGNETIC CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/244381
Kind Code:
A1
Abstract:
An electromagnetic brake control device 14 comprises a first current path (I1) and a second current path (I2) that branch from a coil 31 of an electromagnetic brake 30, a transistor 142 that is provided to the first current path and controls the first current path between a conducting state and a not-conducting state, a smoothing capacitor 12 that is provided to the second current path, and a pulse width modulation unit 143 that can switch between an excitation mode in which the first current path is switched to the conducting state by the transistor 142 and the coil 31 is energized and a demagnetization mode in which the first current path is switched to the not-conducting state by the transistor 142 and the coil 31 is demagnetized by the charging of the smoothing capacitor 12 via the second current path.
Inventors:
SUZUKI MASASHI (JP)
Application Number:
PCT/JP2022/008943
Publication Date:
November 24, 2022
Filing Date:
March 02, 2022
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
International Classes:
H02P15/00; F16D65/16
Domestic Patent References:
| WO2021014803A1 | 2021-01-28 |
Foreign References:
| JPS5012768B1 | 1975-05-14 | |||
| JPS5188788U | 1976-07-15 | |||
| US20090021963A1 | 2009-01-22 | |||
| JP2018126017A | 2018-08-09 | |||
| JP2005045936A | 2005-02-17 |
Attorney, Agent or Firm:
MORISHITA Sakaki (JP)
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